Bentley Communities
Bentley Communities
  • Site
  • User
  • Site
  • Search
  • User
OpenFlows | Water Infrastructure
  • Product Communities
OpenFlows | Water Infrastructure
OpenFlows | Water Infrastructure Wiki What do all the lines in PondMaker step 4 represent?
    • Sign In
    • OpenFlows | Water infrastructure Wiki
    • +OpenFlows CivilStorm
    • +OpenFlows CulvertMaster
    • +OpenFlows FLOOD
    • +OpenFlows FlowMaster
    • +OpenFlows HAMMER
    • -OpenFlows PondPack
      • +Analysis/Computation - BENTLEY PONDPACK
      • +Calculations - Bentley PondPack
      • +Data Input/Model Creation - BENTLEY PONDPACK
      • Error opening PondPack: "The application was not able to start correctly."
      • Error when opening Engineering Libraries: Engineering Library registry is empty
      • Error when running a report: Value of '-xxxx' is not valid for 'left'. 'left' must be greater than or equal to 0.
      • Error with irregular weir outlet structure: Split flow not allowed for weir x-y cross section.
      • +General - BENTLEY PONDPACK
      • Haestad.Support.Storage.StorageException: #hssNotValidFile when trying to open PondPack 10.01.04.00 on Windows 7
      • Is there a way to see the flow from an individual part of the composite outlet structure?
      • -Layout and Data Input - Bentley PondPack
        • Changing the Antecedent Runoff Condition (Solution 500000080974)
        • Dimensionless Huff 10-50 2ndQ 50% and 50-400 3rdQ 50% distributions throw an index was outside the bounds of the array error
        • How do I change the SCS Unit Hydrograph shape factor?
        • How do you attach a pond outlet to an outfall in PondPack?
        • Importing hydrographs from Graphical HEC-1
        • Inputing user defined outflow criteria for a modified rational method catchment
        • Making inactive elements disappear
        • Reusing storm events across multiple projects and computers
        • Scenario Creation Wizard with the Modified Rational Method (Solution 500000068174)
        • Separate custom target peak flows for each return event (Solution 500000075054)
        • User notification "Top elevation on volume curve #.## ft is less than top outlet headwater rating table elevation #.## ft."
        • Using Stored EQT tables in PondPack to speed up performance for ICPM outlets?
        • What do all the lines in PondMaker step 4 represent?
        • Why don't the IDF equation coefficients match?
        • Why must I enter the Tc, C and area twice for a modified rational catchment?
      • +Licensing - Bentley PondPack
      • +Modeling - Bentley PondPack
      • +Other - Bentley PondPack
      • +Output and Reporting - Bentley PondPack
      • Output/Results Presentation - BENTLEY PONDPACK
      • Pond infiltration results appear to be incorrect on a pond with no outlet structure
      • Rating curve not updating when computing the outlet structure or model
      • What is the Chamber System Fill Void Space (%)?
      • What's new in PondPack CONNECT Edition?
    • +OpenFlows SewerCAD
    • +OpenFlows SewerGEMS
    • +OpenFlows StormCAD
    • +OpenFlows WaterCAD
    • +OpenFlows WaterGEMS
    • +OpenFlows WaterSight
    • +OpenFlows WaterOPS
    • +OpenFlows SewerOPS
    • +Bentley HEC-PACK
    • +General
    • +Help and Documentation
    • +Installation
    • +Licensing / Activation
    • +Integration
    • +Modeling
    • +Layout and Data Input
    • +Calculations
    • +Output and Reporting
    • +Other
    • +OpenFlows Product TechNotes And FAQs
    • Check boxes do not appear in tables such as Control Sets dialog
    • Consuming ContextCapture production files within your hydraulic model
    • Convergence NOT achieved Message when computing StormCAD or SewerCAD model
    • Converting Junctions or Hydrants to Isolation Valves
    • Displaying Shapefile Labels (Text) As a Background
    • Enhancing OpenFlows multi-user workflows with ProjectWise Share
    • Error "System.TypeInitializationException"
    • Error 32768 when opening model while integrated with ProjectWise
    • Errors installing patch set
    • Error when opening PondPack: "Object reference not set to an instance of an object" or "Application has generated an exception that could not be handled."
    • Error when saving or validating: System.AccessViolationException: Attempted to read or write protected memory.
    • File Open Dialog does not appear
    • Flextable Report of Multiple Element Types
    • Get to know OpenFlows CONNECT Edition
    • Get to know WaterGEMS, WaterCAD and HAMMER CONNECT Edition
    • How do I import/export multiple point pump curve pump definitions into a model using ModelBuilder?
    • How do you save backup files, so they save at different times and multiple levels?
    • How does the intermediate geodatabase (.MDB or .GDB) file function with ArcMap and ArcGIS Pro integration?
    • How to Delete Engineering Libraries if you get a message about a Read-only database
    • How to receive alerts on new version availability?
    • How to register DAO360.dll or a dll file?
    • How to search using wild cards on a sqlite type of database
    • How to See Hebrew or Arabic text in a .DXF file that was exported from WaterGEMS/WaterCAD
    • Hydraulic grade discontinuity at steep pipes or across nodes (frontwater analysis)
    • I get a red user notification that says, "Inlet guttter mannings n should be greater than 0".
    • Importing .HLB library files from old product versions into format used in the V8 product versions
    • Importing External Data in Geographic Coordinate Systems
    • Importing storm data and other library information from older versions
    • Changing element symbols in the AutoCAD platform
    • Interchange
    • Locating OpenFlows product error log file
    • Locating OpenFlows Product Version Number and License Information
    • Model backward / forward compatibility
    • Multi-user Workflows
    • Modeling a closed loop system
    • Modeling a flow split (diversion) with the SewerCAD or StormCAD numerical solver
    • Modeling turbine load acceptance plus load rejection
    • Multiple CN numbers for a catchment and multiple catchments with a single outlet node
    • Network Navigator Trace Upstream/Downstream does not return any elements
    • OpenFlows software numerical solver theory
    • Percent Connected Impervious Areas and Percent Unconnected Impervious Areas
    • Performing a hydrosanitary design in WaterGEMS or WaterCAD
    • PondPack user notification: "The composite outlet structure is either not selected or deleted."
    • Pressure pipe vs. conduit between pump and wetwell
    • Print Preview > Fit to Page shows blank page or Reports will not print
    • Properties not working when using MicroStation integration with ProjectWise
    • Properties, Flextables, user notifications, or other dialog is missing or will not open or appears to freeze the program
    • Properties, user notifications, or other tool managers not showing up in Integrated version of AutoCAD
    • Reusing Pump Definitions (Import / Export)
    • Reversing orientation of Pipes and Conduits in Bulk
    • Saving a hydraulic model when using the AutoCAD platform (i.e. integrated)
    • Important License Update for OpenFlows Users
    • Setting the invert elevation for multiple conduits coming into one manhole
    • Simple Controls vs. Logical Controls
    • Sorting and relabeling a flextable based on upstream-downstream order
    • Source of the default Specific Speed for pumps and turbines
    • Procedure for finding the curb length needed to capture 100% of gutter flow in a curb inlet with a continuously depressed gutter with no clogging
    • System.Reflection.TargetInvocationException crash when trying to open the application
    • Test Wiki Page - A1
    • Text, cells/blocks and line styles do not display correctly in a DXF background layer
    • The flow annotation (label) in my WaterGEMS for ArcMap isn't reflecting the value displayed in my Geotable or Flextable
    • The total area in the CN/Area Collection does not equal the total catchment area
    • Time tolerance setting in SCADAConnect Simulator
    • Troubleshooting ArcMap Integration
    • Turbine Efficiency
    • Understanding Flow (Additional Subsurface) and Flow (Additional Carryover)
    • Upcoming training and release dates for OpenFlows products
    • User notification "Downstream TW out of range..."
    • User notification "Pump exceeds the maximum operating point specified for the pump curve"
    • User Notification - The captured surface flow at this node does not connect a valid subsurface network. The flow is lost from the system.
    • User Notification: "There is an error in the data for this pipe. The associated data is incorrect"
    • User Notification: Cross section maximum elevation is above the maximum headwater elevation
    • User Notifications: "Pump On elevation is not in the range of upstream ...." and "Off elevation of pump is lower than ..."
    • Using batch pipe split to fix nodes that overlay a pipe instead of connecting to it
    • Using PondMaker with different tailwater for each return event
    • Valve "Status (Initial)" Definitions
    • Velocity Calculations and the Average Velocity Methods in SewerCAD and StormCAD
    • Viewing graph data for multiple scenarios
    • Water age results in a pipe are different from the age in the downstream junction
    • Water Loss Management
    • Water quality Analysis during transient events
    • WaterGems Tips
    • What are the limitations of importing/exporting EPANET files?
    • What is the dotted line that is associated with the isolation valves? Can I turn them off?
    • What's new in WaterCAD, WaterGEMS and HAMMER V8i SELECTseries 6 with CONNECT Integration?
    • What's New in WaterOPS CONNECT Edition 2.3 (Build 10.02.03.06)
    • When the user changes the fluid, why doesn't the calculated pump head change?
    • Working From Home With Your OpenFlows Software
    • "An error occurred when trying to calibrate the model"
    • "COM Error Not Documented" when opening OpenFlows product
    • "Default license feature configuration not found. Product features may be limited. Please run the License Administrator."
    • "The Depth-Flow, Depth-Flow (Simulated Variable Speed) and Volume-Flow pump definition types are unsupported"
    • "Unable to assign attribute ... for element because enumeration value ... is not valid."
    • Add custom data to profile with User Data Extensions
    • After computing a model with the SWMM solver, what does the following warning mean: "Maximum depth increased for node CB-XX"?
    • After computing the model, the pump efficiency results are listed as N/A
    • After running loadbuilder I get a message that says "The layer <Layer_Name> could not be opened."
    • Arch section shape modeling limitations
    • At what point does OpenFlows product license usage start when integrated with MicroStation?
    • Background image quality poor on some computers or Crash when opening models with background layers
    • Blocky stepwise pattern is displayed instead of a continous smooth pattern that was entered when using the SWMM engine
    • Calculating ellipse coefficients in CulvertMaster
    • Calculation of Side Flow factor with grate width less than gutter width
    • Can User Data Extensions be shared between elements in a model?
    • Catch basins imported as manholes from LandXML
    • Change in results before turbine load rejection occurs
    • Conduit "Size" attribute does not appear correctly in annotations or reports
    • Custom quadrant curve not being recognized
    • Date-time based query not working
    • Default license configuration not retaining setting
    • Do inactive elements count against the license count?
    • Does HAMMER support initially negative pressures?
    • Does the friction method affect local minor loss in pipes?
    • Does WaterGEMS and WaterCAD report pressures as gauge pressure or absolute pressure?
    • Efficiency Curve vs. Wire-to-Water Efficiency Curve
    • Error importing a LandXML file from StormCAD into Civil 3D "A pipe or conduit had an unsupported geometry"
    • Error message when validating model: "Elevation (Relative) values within the Irregular shape definition must be non-negative."
    • Error message: "Unrecognized database format ..." when trying to open model
    • Error Saving: "Custom results path is invalid"
    • Find if pump operates off of the pump curve during an automated fire flow scenario
    • Flow arrows are not included in an exported DGN file when using the Save Symbology option in the MicroStation platform
    • Flow from pump is delayed after pump startup
    • HAMMER error: "Zero initial head from pump (turbine). Change at least one of the heads at the pump ends of the adjacent pipes."
    • HEC-22 2nd edition energy loss calculations with the Implicit solver
    • How are "pipe sets" and "nodes of interest" used in a flushing analysis to get auxiliary results at other elements?
    • How can I see the amount of inflow or outflow occuring for a particular surge tank during the transient simulation in HAMMER?
    • How can I speed up computing a model that I need to extract elevations from - it is taking a long time to process in TRex?
    • How do I filter a column in my flextable using a custom query that retrieves all records with a <None> attribute?
    • How do I know if and when my pond is overtopping and how to quantify it?
    • How do I save my model files when working in the ArcMap or ArcGIS Pro platform?
    • How do the channel slopes and velocity effect the headloss formulas in SewerCAD and StormCAD?
    • How do you define the starting conditions of the transient simulation?
    • How does StormCAD handle gutter flow from an active catch basin to an inactive catch basin?
    • How does the diameter of an isolation valve effect the calculated results?
    • How to add comments on custom pump and turbine quadrant curves
    • How to find volume of water coming from a trace element?
    • How to open a .PRNX report file created on exporting custom report in OpenFlows product
    • Hydropneumatic tank atmospheric pressure not changing results
    • Hydropneumatic tank profile animation and time history shows zero gas volume
    • Initial surge when using turbine load acceptance operating case
    • Initial turbine HGL the same as the final HGL after load acceptance
    • Irregular Weir Flow Calculations in a Composite Outlet Structure
    • Is it possible to create old PondPack style text reports?
    • Is it possible to have a storm event start at a different time than the model simulation?
    • Is it possible to use point cloud information to populate elevations in Terrain Extractor (TRex)?
    • Is there a recommended level of Skelebration for different modeling conditions?
    • Is there a way to model a rectangular pipe in WaterCAD, WaterGEMS or HAMMER?
    • Junctions are created on top of one another after using ModelBuilder with the GIS-ID property
    • Learning Resource Guide for WaterSight
    • License usage in the ArcMap and ArcGIS Pro platform
    • LoadBuilder applying demands or loads to inactive elements
    • LoadBuilder importing zero flow loads
    • Log4net issues appear in security scans for OpenFlows products
    • Long time to load background layers
    • Manage Pump Speed Series
    • Manage Pump Time Series
    • Managing large number of scenarios
    • Missing Young's Modulus and Poisson's Ratio values in the material library
    • Modeling closed or pressurized pipes in PondPack
    • Modeling culverts in series in CulvertMaster
    • Modeling treatment for pollutants at nodes or ponds in SewerGEMS and CivilStorm
    • MrSid files are not available as a background layer type or an error is generated when loading MrSid files
    • My scenario label is not in my report preview when I run the report builder
    • +OpenFlows Academic Books
    • Pipe Renewal Planner Vs OpenFlows WaterCAP
    • Pipes connecting to the wrong element after submodel import
    • Pipes not merging when using Skelebrator with series pipe merging
    • PondPack error: Unable to open user roster
    • Post calculation processor tool error: The result property and output property have no common supported element types.
    • Problems opening GEOPAK Drainage file exported from StormCAD
    • Purpose of the Virtual Flow Depth Calculation Option
    • Query, alert or formula UDX not working correctly with "=" (equals)
    • Red user notification, "Post engine loading process encountering unexpected data. Please rectify any validation errors and try again."
    • Reporting pressure available at the exact total needed fire flow
    • SCADAConnect in SewerGEMS
    • Series Pipe Merging in Skelebrator not working for pipes with zero diameter
    • Sharing Queries for use in other models
    • Small difference in gutter worksheet result between US and SI units
    • The concentration at the stop node directly after a constituent source in a tank is decreasing rapidly
    • The control symbol, check valve symbol, and dashed lines connecting customer meters, isolation valves, and SCADA elements are not visible in the ArcMap or ArcGIS Pro platforms
    • The headloss in a pipe downstream of a parallel VSP is higher than expected
    • The result field "Depth (Flooding)" is listed as N/A after computing a model with the SWMM engine. Is there a way to see the depth of flooding for a node?
    • Translated version still showing as English
    • Troubleshooting ArcGIS Pro Integration
    • Troubleshooting making a SCADA connection to Oracle database
    • Troubleshooting ModelBuilder issues and errors connecting to an Oracle database
    • Unexpected small flow in pipes that should have zero flow
    • Use of the Gas Law Exponent During Initial Conditions vs. Transient simulation
    • User Data Extension not appearing in the Post-Calculation Processor's "Output Property" field
    • User Data Extensions in the Fireflow report
    • User Notification "More than one VSPB cannot control the same control node"
    • User notification when computing: IDF data is not supported by SWMM. Storm event is excluded from export.
    • User notification: "Conduit has a Stop control structure, but this is not supported next to the connected outfall element."
    • User notification: "Transition from CONCENTRATED to EXTENDED"
    • Using Imperial and Metric Hydro International Vortex Valves
    • Using US Survey feet
    • Warning about outlet hydrograph not cresting
    • WaterGEMS and WaterCAD Data Import FAQ
    • WaterSight - Pump Overview
    • +WaterSight Learning Resource Guide
    • Wetwell flooded warning in steady state with GVF Convex (SewerCAD) solver
    • What does Entrance Control mean?
    • What is the best way to model an orifice plate inside a catchbasin with surface storage above the catchbasin rim?
    • What is the difference between a stand pipe and an inlet box?
    • What is the purpose the Rainfall File, Runoff File, and RDII File in the Calculations Options?
    • What is the workflow for setting up pre and postdeveloped conditions for multiple return events?
    • What kind of demands should be used as the initial conditions of a transient simulation?
    • What's new in HAMMER V8i SELECTseries 6?
    • When running a query, why is it not picking up the elements that it should?
    • Why are there 2 entries for the same alternative in the dropdown menu in the properties of a scenario? One with an "i" and one without it.
    • Why are there so many extra element types listed for WaterGEMS and WaterCAD, such as surge tank, rupture disk, Periodic head-flow?
    • Why do I get a warning message about the rational method being used for the modified rational method?
    • Will SCADA Results Publishing work with only OPC sources?

    You are currently reviewing an older revision of this page.

    • History View current version

    What do all the lines in PondMaker step 4 represent?

    Applies To 
    Product(s): PondPack, CivilStorm, SewerGEMS
    Version(s): 08.11.01.XX+ (PondPack), 08.11.04.54+ (CivilStorm/SewerGEMS)
    Area:  Layout and Data Input
    Original Author: Mark Pachlhofer, Bentley Technical Support Group

    Problem Description

    What do all the lines in PondMaker step 4 represent?

    Explanation

    The blue line represents the performance of the outlet structure that you're currently trialing (the rating curve).

    The orange line represents the target rating curve you are trying to meet, based on the predevelopment peak flows.

    The dashed lines are the estimated maximum water surface elevation for each storm event, from the estimated storage volume and designed pond from the previous step.

    In this step of PondMaker the object is to define an outlet structure whose rating curve matches the target rating curve as closely as possible. If your outlet's curve is above and to the left of your target rating curve, it is essentially too small and has restricted flow too much. On the other hand, if your outflow curve is below and to the right of the target rating curve your outlet structure is too large and is letting too much water out.

    In the best case you would like to meet your target rating curve exactly, but this is not always possible. For many designs as long as you are within a certain tolerance your design will considered sufficient. You should check with your local governing agency on the policy for your town, city, or state. The "pass" or "fail" designations in the Design worksheet are based on the above/below tolerances set in the Options tab.

    Below is a simple example of an outlet structure that is slightly too small/restrictive for the 10 year event and just slightly too large (releasing too much flow) for the 100 year event, but meets the acceptable tolerance design for this project of 10% above/below.


    Remember that this step is just an estimate. In the following step, you will actually route flow through the designed pond and outlet and will be presented with a similar graph/diagram. In many cases you will need to make further adjustments to the pond dimensions and outlet to meet the design criteria, especially if the shape of the outflow hydrograph does not match closely to what was used in the storage estimate step.

    Communities
    • Home
    • Getting Started
    • Community Central
    • Products
    • Support
    • Secure File Upload
    • Feedback
    Support and Services
    • Home
    • Product Support
    • Downloads
    • Subscription Services Portal
    Training and Learning
    • Home
    • About Bentley Institute
    • My Learning History
    • Reference Books
    Social Media
    •    LinkedIn
    •    Facebook
    •    Twitter
    •    YouTube
    •    RSS Feed
    •    Email

    © 2023 Bentley Systems, Incorporated  |  Contact Us  |  Privacy |  Terms of Use  |  Cookies